mirror of
https://github.com/RGBCube/uutils-coreutils
synced 2026-01-15 17:51:07 +00:00
092e4d1ed4
Implemented as follows:
Usage: expr EXPRESSION
or: expr OPTION
--help display this help and exit
--version output version information and exit
Print the value of EXPRESSION to standard output. A blank line below
separates increasing precedence groups. EXPRESSION may be:
ARG1 | ARG2 ARG1 if it is neither null nor 0, otherwise ARG2
ARG1 & ARG2 ARG1 if neither argument is null or 0, otherwise 0
ARG1 < ARG2 ARG1 is less than ARG2
ARG1 <= ARG2 ARG1 is less than or equal to ARG2
ARG1 = ARG2 ARG1 is equal to ARG2
ARG1 != ARG2 ARG1 is unequal to ARG2
ARG1 >= ARG2 ARG1 is greater than or equal to ARG2
ARG1 > ARG2 ARG1 is greater than ARG2
ARG1 + ARG2 arithmetic sum of ARG1 and ARG2
ARG1 - ARG2 arithmetic difference of ARG1 and ARG2
ARG1 * ARG2 arithmetic product of ARG1 and ARG2
ARG1 / ARG2 arithmetic quotient of ARG1 divided by ARG2
ARG1 % ARG2 arithmetic remainder of ARG1 divided by ARG2
STRING : REGEXP [NOT IMPLEMENTED] anchored pattern match of REGEXP in STRING
match STRING REGEXP [NOT IMPLEMENTED] same as STRING : REGEXP
substr STRING POS LENGTH [NOT IMPLEMENTED] substring of STRING, POS counted from 1
index STRING CHARS [NOT IMPLEMENTED] index in STRING where any CHARS is found, or 0
length STRING [NOT IMPLEMENTED] length of STRING
+ TOKEN interpret TOKEN as a string, even if it is a
keyword like 'match' or an operator like '/'
( EXPRESSION ) value of EXPRESSION
Beware that many operators need to be escaped or quoted for shells.
Comparisons are arithmetic if both ARGs are numbers, else lexicographical.
Pattern matches return the string matched between \( and \) or null; if
\( and \) are not used, they return the number of characters matched or 0.
Exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null
or 0, 2 if EXPRESSION is syntactically invalid, and 3 if an error occurred.
Environment variables:
* EXPR_DEBUG_TOKENS=1 dump expression's tokens
* EXPR_DEBUG_RPN=1 dump expression represented in reverse polish notation
* EXPR_DEBUG_SYA_STEP=1 dump each parser step
* EXPR_DEBUG_AST=1 dump expression represented abstract syntax tree
440 lines
11 KiB
Makefile
440 lines
11 KiB
Makefile
# Config options
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ENABLE_LTO ?= n
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ENABLE_STRIP ?= n
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# Binaries
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RUSTC ?= rustc
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CARGO ?= cargo
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CC ?= gcc
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RM := rm
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# Install directories
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PREFIX ?= /usr/local
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BINDIR ?= /bin
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LIBDIR ?= /lib
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# This won't support any directory with spaces in its name, but you can just
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# make a symlink without spaces that points to the directory.
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BASEDIR ?= $(shell pwd)
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SRCDIR := $(BASEDIR)/src
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BUILDDIR := $(BASEDIR)/build
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TESTDIR := $(BASEDIR)/test
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TEMPDIR := $(BASEDIR)/tmp
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# Flags
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RUSTCFLAGS := -O
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RMFLAGS :=
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RUSTCLIBFLAGS := $(RUSTCFLAGS) -L $(BUILDDIR)/
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RUSTCTESTFLAGS := $(RUSTCFLAGS)
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# Handle config setup
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ifeq ($(ENABLE_LTO),y)
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RUSTCBINFLAGS := $(RUSTCLIBFLAGS) -C lto
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else
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RUSTCBINFLAGS := $(RUSTCLIBFLAGS)
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endif
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ifneq ($(ENABLE_STRIP),y)
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ENABLE_STRIP :=
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endif
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# Possible programs
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PROGS := \
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base64 \
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basename \
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cat \
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chmod \
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cksum \
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comm \
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cp \
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cut \
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dirname \
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echo \
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env \
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expand \
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expr \
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factor \
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false \
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fmt \
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fold \
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link \
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hashsum \
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ln \
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mkdir \
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nl \
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nproc \
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od \
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paste \
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printenv \
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ptx \
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pwd \
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readlink \
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realpath \
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relpath \
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rm \
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rmdir \
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sleep \
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split \
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seq \
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shuf \
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sort \
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sum \
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sync \
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tac \
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tee \
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test \
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tr \
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true \
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truncate \
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tsort \
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unexpand \
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uniq \
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wc \
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yes \
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head \
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tail \
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whoami
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UNIX_PROGS := \
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chroot \
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du \
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groups \
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hostid \
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hostname \
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id \
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kill \
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logname \
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mkfifo \
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mv \
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nice \
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nohup \
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stdbuf \
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timeout \
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touch \
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tty \
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uname \
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unlink \
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uptime \
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users
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ifneq ($(OS),Windows_NT)
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PROGS := $(PROGS) $(UNIX_PROGS)
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endif
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ALIASES := \
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hashsum:md5sum \
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hashsum:sha1sum \
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hashsum:sha224sum \
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hashsum:sha256sum \
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hashsum:sha384sum \
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hashsum:sha512sum
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BUILD ?= $(PROGS)
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# Output names
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EXES := \
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$(sort $(filter $(BUILD),$(filter-out $(DONT_BUILD),$(PROGS))))
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CRATE_RLIBS :=
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INSTALL ?= $(EXES)
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INSTALLEES := \
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$(filter $(INSTALL),$(filter-out $(DONT_INSTALL),$(EXES) uutils))
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# Shared library extension
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SYSTEM := $(shell uname)
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DYLIB_EXT :=
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ifeq ($(SYSTEM),Linux)
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DYLIB_EXT := so
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DYLIB_FLAGS := -shared
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endif
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ifeq ($(SYSTEM),Darwin)
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DYLIB_EXT := dylib
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DYLIB_FLAGS := -dynamiclib -undefined dynamic_lookup
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endif
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# Libaries to install
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LIBS :=
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ifneq (,$(findstring stdbuf, $(INSTALLEES)))
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LIBS += libstdbuf.$(DYLIB_EXT)
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endif
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# Programs with usable tests
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TEST_PROGS := \
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base64 \
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basename \
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cat \
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cksum \
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cp \
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cut \
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env \
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dirname \
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echo \
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factor \
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false \
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fold \
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hashsum \
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head \
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ln \
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mkdir \
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mv \
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nl \
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paste \
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ptx \
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pwd \
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readlink \
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realpath \
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rm \
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seq \
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sort \
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split \
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stdbuf \
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sum \
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tac \
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test \
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touch \
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tr \
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true \
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truncate \
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tsort \
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unlink \
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unexpand \
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wc
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TEST ?= $(TEST_PROGS)
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TESTS := \
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$(filter $(TEST),$(filter-out $(DONT_TEST),$(filter $(BUILD),$(filter-out $(DONT_BUILD),$(TEST_PROGS)))))
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# figure out what dependencies we need based on which programs we're building
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define DEP_INCLUDE
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-include $(SRCDIR)/$(1)/deps.mk
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endef
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# we always depend on libc because common/util does
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# we also depend on getopts since all utilities support command-line arguments
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DEPLIBS := libc getopts
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DEPPLUGS :=
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# now, add in deps in src/utilname/deps.mk
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# if we're testing, only consider the TESTS variable,
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# otherwise consider the EXES variable
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ifeq ($(MAKECMDGOALS),test)
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$(foreach build,$(TESTS),$(eval $(call DEP_INCLUDE,$(build))))
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else
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$(foreach build,$(sort $(TESTS) $(EXES)),$(eval $(call DEP_INCLUDE,$(build))))
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endif
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# uniqify deps
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DEPLIBS := $(sort $(DEPLIBS))
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DEPPLUGS := $(sort $(DEPPLUGS))
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# build --extern commandline for rustc
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DEP_EXTERN := $(foreach lib,$(subst -,_,$(DEPLIBS)),--extern $(lib)=$(BUILDDIR)/lib$(lib).rlib)
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DEP_EXTERN += $(foreach plug,$(subst -,_,$(DEPPLUGS)),--extern $(plug)=$(BUILDDIR)/lib$(plug).$(DYLIB_EXT))
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# Setup for building crates
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define BUILD_SETUP
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X := $(shell $(RUSTC) --print file-names --crate-type rlib $(SRCDIR)/$(1)/$(1).rs)
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$(1)_RLIB := $$(X)
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CRATE_RLIBS += $$(X)
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endef
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$(foreach crate,$(EXES),$(eval $(call BUILD_SETUP,$(crate))))
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# Utils stuff
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EXES_PATHS := $(addprefix $(BUILDDIR)/,$(EXES))
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RLIB_PATHS := $(addprefix $(BUILDDIR)/,$(CRATE_RLIBS))
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command = sh -c '$(1)'
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RESERVED_EXTERNS := --extern uufalse=$(BUILDDIR)/libfalse.rlib --extern uutrue=$(BUILDDIR)/libtrue.rlib --extern uutest=$(BUILDDIR)/libtest.rlib
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# Main exe build rule
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define EXE_BUILD
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$(BUILDDIR)/gen/$(1).rs: $(BUILDDIR)/mkmain
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$(BUILDDIR)/mkmain $(1) $$@
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$(BUILDDIR)/$(1): $(BUILDDIR)/gen/$(1).rs $(BUILDDIR)/$($(1)_RLIB) | $(BUILDDIR) deps
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$(RUSTC) $(RUSTCBINFLAGS) $(RESERVED_EXTERNS) -o $$@ $$<
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$(if $(ENABLE_STRIP),strip $$@,)
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endef
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# GRRR rust-crypto makes a crate called "crypto".
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# This should NOT be allowed by crates.io. GRRRR.
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define DEP_BUILD
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DEP_$(1):
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ifeq ($(1),crypto)
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cd $(BASEDIR)/deps && $(CARGO) build --package rust-crypto --release
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else ifeq ($(1),kernel32)
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cd $(BASEDIR)/deps && $(CARGO) build --package kernel32-sys --release
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else ifeq ($(1),advapi32)
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cd $(BASEDIR)/deps && $(CARGO) build --package advapi32-sys --release
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else
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cd $(BASEDIR)/deps && $(CARGO) build --package $(1) --release
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endif
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endef
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define CRATE_BUILD
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-include $(BUILDDIR)/$(1).d
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$(BUILDDIR)/$($(1)_RLIB): $(SRCDIR)/$(1)/$(1).rs | $(BUILDDIR) deps
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$(RUSTC) $(RUSTCLIBFLAGS) $(DEP_EXTERN) --crate-type rlib --emit link,dep-info $$< --out-dir $(BUILDDIR)
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endef
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# Aliases build rule
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ALIAS_SOURCE = $(firstword $(subst :, ,$(1)))
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ALIAS_TARGET = $(word 2,$(subst :, ,$(1)))
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define MAKE_ALIAS
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ifneq ($(ALIAS_TARGET,$(1)),)
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all: $(BUILDDIR)/$(call ALIAS_TARGET,$(1))
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$(BUILDDIR)/$(call ALIAS_TARGET,$(1)): $(BUILDDIR)/$(call ALIAS_SOURCE,$(1))
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$(call command,install $$@ $$<)
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endif
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endef
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# Test exe built rules
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define TEST_BUILD
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test_$(1): $(BUILDDIR)/$(1) $(TEMPDIR)/$(1)/$(1)_test
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$(call command,cp $(BUILDDIR)/$(1) $(TEMPDIR)/$(1) && cd $(TEMPDIR)/$(1) && $(TEMPDIR)/$(1)/$(1)_test)
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$(TEMPDIR)/$(1)/$(1)_test: $(TESTDIR)/$(1).rs | $(TEMPDIR)/$(1)
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$(call command,$(RUSTC) $(RUSTCTESTFLAGS) $(DEP_EXTERN) --test -o $$@ $$<)
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$(TEMPDIR)/$(1): | $(TEMPDIR)
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$(call command,cp -r $(TESTDIR)/fixtures/$(1) $$@ || mkdir $$@)
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endef
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# Main rules
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all: $(EXES_PATHS) $(BUILDDIR)/uutils
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# Creating necessary rules for each targets
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$(foreach crate,$(EXES),$(eval $(call CRATE_BUILD,$(crate))))
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$(foreach exe,$(EXES),$(eval $(call EXE_BUILD,$(exe))))
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$(foreach alias,$(ALIASES),$(eval $(call MAKE_ALIAS,$(alias))))
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$(foreach test,$(TESTS),$(eval $(call TEST_BUILD,$(test))))
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$(foreach dep,$(sort $(DEPLIBS) $(DEPPLUGS)),$(eval $(call DEP_BUILD,$(dep))))
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-include $(BUILDDIR)/uutils.d
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$(BUILDDIR)/uutils: $(SRCDIR)/uutils/uutils.rs $(BUILDDIR)/mkuutils $(RLIB_PATHS)
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$(BUILDDIR)/mkuutils $(BUILDDIR)/gen/uutils.rs $(EXES)
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$(RUSTC) $(RUSTCBINFLAGS) $(RESERVED_EXTERNS) --emit link,dep-info $(BUILDDIR)/gen/uutils.rs --out-dir $(BUILDDIR)
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$(if $(ENABLE_STRIP),strip $@)
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# Library for stdbuf
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$(BUILDDIR)/libstdbuf.$(DYLIB_EXT): $(SRCDIR)/stdbuf/libstdbuf.rs $(SRCDIR)/stdbuf/libstdbuf.c $(SRCDIR)/stdbuf/libstdbuf.h | $(BUILDDIR)
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cd $(SRCDIR)/stdbuf && \
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$(RUSTC) libstdbuf.rs --extern libc=$(BUILDDIR)/liblibc.rlib && \
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$(CC) -c -Wall -Werror -fPIC libstdbuf.c && \
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$(CC) $(DYLIB_FLAGS) -o libstdbuf.$(DYLIB_EXT) liblibstdbuf.a libstdbuf.o && \
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mv *.$(DYLIB_EXT) $(BUILDDIR) && $(RM) *.o && $(RM) *.a
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$(BUILDDIR)/stdbuf: $(BUILDDIR)/libstdbuf.$(DYLIB_EXT)
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deps: $(BUILDDIR) $(SRCDIR)/cksum/crc_table.rs $(addprefix DEP_,$(DEPLIBS) $(DEPPLUGS))
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$(foreach lib,$(subst -,_,$(DEPLIBS)),$(shell cp $(BASEDIR)/deps/target/release/deps/lib$(lib)-*.rlib $(BUILDDIR)/lib$(lib).rlib))
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$(foreach plug,$(subst -,_,$(DEPPLUGS)),$(shell cp $(BASEDIR)/deps/target/release/deps/lib$(plug)-*.$(DYLIB_EXT) $(BUILDDIR)/lib$(plug).$(DYLIB_EXT)))
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$(BUILDDIR)/mkmain: mkmain.rs | $(BUILDDIR)
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$(RUSTC) $(RUSTCFLAGS) $< -o $@
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$(BUILDDIR)/mkuutils: mkuutils.rs | $(BUILDDIR)
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$(RUSTC) $(RUSTCFLAGS) $< -o $@
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$(SRCDIR)/cksum/crc_table.rs: $(SRCDIR)/cksum/gen_table.rs
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cd $(SRCDIR)/cksum && $(RUSTC) $(RUSTCBINFLAGS) gen_table.rs && ./gen_table && $(RM) gen_table
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$(SRCDIR)/factor/prime_table.rs: $(SRCDIR)/factor/gen_table.rs
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cd $(SRCDIR)/factor && $(RUSTC) $(RUSTCBINFLAGS) gen_table.rs && ./gen_table > $@ && $(RM) gen_table
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crates:
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echo $(EXES)
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test: $(TEMPDIR) $(addprefix test_,$(TESTS))
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$(RM) -rf $(TEMPDIR)
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clean:
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$(RM) -rf $(BUILDDIR) $(TEMPDIR)
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distclean: clean
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cd $(BASEDIR)/deps && $(CARGO) clean && $(CARGO) update
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$(BUILDDIR):
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mkdir -p $(BUILDDIR)/gen
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$(TEMPDIR):
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$(RM) -rf $(TEMPDIR)
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mkdir $(TEMPDIR)
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install: $(addprefix $(BUILDDIR)/,$(INSTALLEES))
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mkdir -p $(DESTDIR)$(PREFIX)$(BINDIR)
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for prog in $(INSTALLEES); do \
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install $(BUILDDIR)/$$prog $(DESTDIR)$(PREFIX)$(BINDIR)/$(PROG_PREFIX)$$prog; \
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done
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mkdir -p $(DESTDIR)$(PREFIX)$(LIBDIR)
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for lib in $(LIBS); do \
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install $(BUILDDIR)/$$lib $(DESTDIR)$(PREFIX)$(LIBDIR)/$$lib; \
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done
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# TODO: figure out if there is way for prefixes to work with the symlinks
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install-multicall: $(BUILDDIR)/uutils
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mkdir -p $(DESTDIR)$(PREFIX)$(BINDIR)
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install $(BUILDDIR)/uutils $(DESTDIR)$(PREFIX)$(BINDIR)/$(PROG_PREFIX)uutils
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cd $(DESTDIR)$(PREFIX)$(BINDIR)
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for prog in $(INSTALLEES); do \
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ln -s $(PROG_PREFIX)uutils $$prog; \
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done
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mkdir -p $(DESTDIR)$(PREFIX)$(LIBDIR)
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for lib in $(LIBS); do \
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install $(BUILDDIR)/$$lib $(DESTDIR)$(PREFIX)$(LIBDIR)/$$lib; \
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done
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uninstall:
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rm -f $(addprefix $(DESTDIR)$(PREFIX)$(BINDIR)/$(PROG_PREFIX),$(PROGS))
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rm -f $(addprefix $(DESTDIR)$(PREFIX)$(LIBDIR)/,$(LIBS))
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uninstall-multicall:
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rm -f $(addprefix $(DESTDIR)$(PREFIX)$(BINDIR)/,$(PROGS) $(PROG_PREFIX)uutils)
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rm -f $(addprefix $(DESTDIR)$(PREFIX)$(LIBDIR)/,$(LIBS))
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# Test under the busybox testsuite
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$(BUILDDIR)/busybox: $(BUILDDIR)/uutils
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rm -f $(BUILDDIR)/busybox
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ln -s $(BUILDDIR)/uutils $(BUILDDIR)/busybox
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# This is a busybox-specific config file their test suite wants to parse.
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$(BUILDDIR)/.config: $(BASEDIR)/.busybox-config $(BUILDDIR)/uutils
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cp $< $@
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ifeq ($(BUSYBOX_SRC),)
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busytest:
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@echo
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@echo "To run \`busytest\` set BUSYBOX_SRC to the directory of the compiled busybox source code."
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@echo "Optionally set RUNTEST_ARGS to arguments to pass to the busybox \`runtest\` program."
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@echo
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@false
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else
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busytest: $(BUILDDIR)/busybox $(BUILDDIR)/.config
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(cd $(BUSYBOX_SRC)/testsuite && bindir=$(BUILDDIR) ./runtest $(RUNTEST_ARGS))
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endif
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# This rule will build each program, ignore all output, and return pass
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# or fail depending on whether the build has errors.
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build-check:
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@for prog in $(sort $(PROGS)); do \
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make BUILD="$$prog" >/dev/null 2>&1; status=$$?; \
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if [ $$status -eq 0 ]; \
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then printf "%-10s\t\033[1;32mpass\033[00;m\n" $$prog; \
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else printf "%-10s\t\033[1;31mfail\033[00;m\n" $$prog; \
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fi; \
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done
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# This rule will test each program, ignore all output, and return pass
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# or fail depending on whether the test has errors.
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test-check:
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@for prog in $(sort $(TEST_PROGS)); do \
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make TEST="$$prog" test >/dev/null 2>&1; status=$$?; \
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if [ $$status -eq 0 ]; \
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then printf "%-10s\t\033[1;32mpass\033[00;m\n" $$prog; \
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else printf "%-10s\t\033[1;31mfail\033[00;m\n" $$prog; \
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fi; \
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done
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.PHONY: $(TEMPDIR) all deps test distclean clean busytest install uninstall
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